A Comparison of How Likely it is That Different Tablets of Oxycodone Will be Broken up and Snorted by Adults Who Sometimes Take Drugs for Pleasure

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The trial comprises an Enrollment Visit, a Qualification Phase, a Treatment Phase (including 3 treatment periods), a Final Examination, and a Follow-up Phone Call.

The Qualification Phase includes a naloxone challenge test (to verify that participants are not opioid-dependent) and a drug discrimination test (to determine whether or not participants are able to distinguish intranasally administered active drug from placebo). Participants will be randomized to receive a single intranasal dose each of oxycodone active pharmaceutical ingredient (API) and matching placebo in a double-blind manner. The total mass of each single dose will be 30 milligrams.

Participants who successfully complete the Qualification Phase are eligible to be included in the Treatment Phase. During the Treatment Phase, participants will receive test product, comparator, and placebo following a randomized, double-blind, double-dummy, 3-way crossover design. Participants will receive a single intranasal dose of each of the treatments (combined doses of investigational medicinal product {IMP}) on Day 1, Day 4, and Day 7 of the Treatment Phase. A single dose of a treatment is defined as insufflation of single doses of the 2 applicable IMPs in quick succession. The 2 applicable IMPs must be insufflated in the following pre-defined order. Oxycodone API or placebo to match oxycodone API must always be insufflated first. Oxycodone immediate release (IR) abuse-deterrent formulation (ADF) or placebo to match oxycodone IR ADF must always be insufflated second. The total mass of each single dose of treatment will be 570 milligrams.

Participants receive a single intranasal dose of placebo to match oxycodone API powder (mass of 30 mg) followed by a single intranasal dose of placebo to match manipulated oxycodone IR ADF (mass of 540 mg).

100-point bipolar visual analog scale (VAS) ratings after each IMP administration in response to the statement "At this moment, my liking for this drug is". The 100 millimeter (mm) bipolar VAS is anchored in the center with a neutral anchor of "neither like nor dislike" (score of 50 mm), to the left with "strong disliking" (score of 0 mm) and to the right with "strong liking" (score of 100 mm).

The analysis in plasma will be performed by means of a validated LC-MS/MS method.

Area under the plasma concentration-time curve of oxycodone from time point 0 to t (AUC0-t) [ Time Frame: pre-dose and at 0.16, 0.33, 0.5, 0.75, 1, 1.33, 1.66, 2, 3, 4, 6, 8, 10, 12 hours, and 24 hours post-dose on Day 1 to 2; Day 4 to 5; and Day 7 to 8 ]

The analysis in plasma will be performed by means of a validated LC-MS/MS method.

Area under the plasma concentration-time curve of oxycodone from time point 0 to infinity (AUC) [ Time Frame: pre-dose and at 0.16, 0.33, 0.5, 0.75, 1, 1.33, 1.66, 2, 3, 4, 6, 8, 10, 12 hours, and 24 hours post-dose on Day 1 to 2; Day 4 to 5; and Day 7 to 8 ]

The analysis in plasma will be performed by means of a validated LC-MS/MS method.

100-point unipolar VAS ratings after each IMP administration in response to the statement "At this moment, I am feeling high". The 100 mm unipolar VAS is anchored to the left with "not at all" (score of 0 mm) and to the right with "extremely" (score of 100).

Overall Drug Liking: 100-point bipolar VAS [ Time Frame: at 12 and 24 hours post-dose on Day 1 to 2; Day 4 to 5; and Day 7 to 8 ]

100-point bipolar VAS ratings after each IMP administration in response to the statement "Overall, my liking for this drug is". The 100 mm bipolar VAS is anchored in the center with a neutral anchor of "neither like nor dislike" (score of 50 mm), to the left with "strong disliking" (score of 0 mm) and to the right with "strong liking" (score of 100 mm).

Take Drug Again: 100-point bipolar VAS [ Time Frame: at 12 and 24 hours post-dose on Day 1 to 2; Day 4 to 5; and Day 7 to 8 ]

100-point bipolar VAS ratings after each IMP administration in response to the statement "I would take this drug again". The 100 mm bipolar VAS is anchored in the center with a neutral anchor of "neutral" (score of 50 mm), to the left with "definitely not" (score of 0 mm) and to the right with "definitely so" (score of 100 mm).

100-point unipolar VAS ratings after each IMP administration in response to the statement "At this moment, I can feel bad drug effects". The 100 mm unipolar VAS, is anchored to the left with "not at all" (score of 0 mm) and to the right with "extremely" (score of 100).

Ease Of Snorting: 100-point bipolar VAS [ Time Frame: at 0 hour as soon as possible after IMP administration on Day 1, Day 4, and Day 7 ]

100-point bipolar VAS ratings after each IMP administration in response to the statement "How easy was it to snort?". The 100 mm bipolar VAS is anchored in the center with a neutral anchor of "neither easy nor difficult" (score of 50 mm), to the left with "very difficult" (score of 0 mm) and to the right with "very easy" (score of 100 mm).

Pleasantness Of Snorting: 100-point bipolar VAS [ Time Frame: at 0 hour as soon as possible after IMP administration on Day 1, Day 4, and Day 7 ]

100-point bipolar VAS ratings after each IMP administration in response to the statement "How does it feel in your nose?". The 100 mm bipolar VAS is anchored in the center with a neutral anchor of "neither pleasant nor unpleasant" (score of 50 mm), to the left with "very unpleasant" (score of 0 mm) and to the right with "very pleasant" (score of 100 mm).

The size of the participant's pupil will be measured (in mm) using a pupillometer. The same eye for each participant will be used for all measurements throughout the trial. Measurements will be collected under mesopic lighting conditions. PCmin will be calculated

Pupillometry parameter: Time to reach the apparent minimum diameter (PTmin) [ Time Frame: pre-dose and at 0.5, 1, 2, 4, 6, 8, 12 hours, and 24 hours post-dose on Day 1 to 2; Day 4 to 5; and Day 7 to 8 ]

The size of the participant's pupil will be measured (in mm) using a pupillometer. The same eye for each participant will be used for all measurements throughout the trial. Measurements will be collected under mesopic lighting conditions.

Pupillometry parameter: The area over the curve to 1 hour relative to the baseline (PAOC0-1hour) [ Time Frame: Baseline up to 1 hour ]

The size of the participant's pupil will be measured (in mm) using a pupillometer. The same eye for each participant will be used for all measurements throughout the trial. Measurements will be collected under mesopic lighting conditions.

Pupillometry parameter: The area over the curve to 8 hours relative to the baseline (PAOC0-8hours) [ Time Frame: Baseline up to 8 hours ]

The size of the participant's pupil will be measured (in mm) using a pupillometer. The same eye for each participant will be used for all measurements throughout the trial. Measurements will be collected under mesopic lighting conditions.

Incidence of adverse events of manipulated IMP [ Time Frame: From the first IMP administration (Day 1) to the Final Examination (Day 9) ]

Number of adverse events and number of participants with adverse events.

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Layout table for eligibility information

Ages Eligible for Study:

18 Years to 55 Years (Adult)

Sexes Eligible for Study:

All

Accepts Healthy Volunteers:

Yes

Criteria

Inclusion Criteria:

Participants have given written informed consent to participate.

Female or male participants, aged 18 years to 55 years inclusive at the time of the Enrollment Visit.

Participants must be in good health as determined by the medical history, physical and laboratory examinations and must not show any clinically significant findings as determined by 12-lead electrocardiogram (ECG), vital signs (pulse rate, respiratory rate, systolic and diastolic blood pressure), oxygen saturation, body temperature, and safety laboratory parameters (hematology, clinical chemistry, clotting, and urinalysis).

Female participants of childbearing potential must agree to use one of the acceptable contraceptive regimens listed below from at least 15 days prior to the first administration of IMP until at least 30 days after the last administration of IMP.

All female participants are considered to be of childbearing potential unless they have undergone hysterectomy or bilateral oophorectomy or have been postmenopausal for at least 12 months (i.e., spontaneous amenorrhea at least 1 year prior to screening and confirmed follicle-stimulating hormone [FSH] level above 40 international units per liter).

Current opioid users who have used opioids for recreational (non-therapeutic) purposes, i.e., for psychoactive effects, at least 10 times in their lifetime and at least once in the last 12 weeks before the Enrollment Visit.

Participants who have intranasally insufflated drugs for recreational (non-therapeutic) purposes at least 3 times in the last 12 months before the Enrollment Visit.

Participant received an IMP or an investigational medical device in another clinical trial less than 30 days before the Enrollment Visit. Depending on the nature of the previous IMP or investigational medical device, a longer washout may be needed.

Diseases or conditions known to interfere with the absorption, distribution, metabolism, or excretion of drugs.

History of orthostatic hypotension.

Known history of or at risk of seizures (i.e., head trauma, epilepsy in family history, unclear loss of consciousness).

Definite or suspected hypersensitivity to the active substance or to any of the excipients of the IMP; especially known hypersensitivity/intolerance or contraindications to opioids (including [history of] bronchial asthma, chronic obstructive pulmonary disease, pulmonary heart disease, diseases of the adrenal gland, paralytic ileus, prostatic hypertrophy, or urethral stricture), opioid antagonists, or any excipients of the drug formulation.

Unable to abstain from regular use of any medication (including prescription drugs, over-the-counter drugs, dietary supplements, and herbal remedies like St. John's Wort) from 2 weeks before the Enrollment Visit and anticipated use during the course of the trial. Exempt from this criterion are oral contraceptives in women of childbearing potential and topical medications without systemic effect (except those for intranasal use and nasal sprays).

Lactating or breastfeeding women.

Habitually smoking more than 20 cigarettes, 2 cigars, or 2 pipes of tobacco per day in the last 3 months before enrollment in this trial.

Unable to refrain from smoking or unable to abstain from the use of prohibited nicotine-containing products (including electronic cigarettes, pipes, cigars, chewing tobacco, nicotine topical patches, nicotine gum, or nicotine lozenges) from 1 hour before until 5 hours after each IMP administration.

Not willing or able to abstain from consumption of beverages or food containing quinine (bitter lemon, tonic water), grapefruit juice (sweet or sour), Seville oranges, or alcohol in the Qualification Phase and the Treatment Phase from 72 hours before the planned first administration of IMP in that phase until discharge from the trial site at the end of that phase.

Known or suspected of not being able to comply with the requirements of the trial protocol or the instructions of the trial site staff.

Not able to communicate meaningfully with the trial site staff.

Employee of the investigator or trial site, with direct involvement in the proposed trial or other trials under the direction of that investigator or trial site, as well as family members of the employees or the investigator.

Blood loss of 500 milliliters or more (e.g., owing to blood donation) less than 56 days before enrollment in this trial.

Unable to establish reliable venous access.

Substance or alcohol dependence (excluding nicotine and caffeine) in the last 12 months before enrollment in this trial, as defined by the diagnostic and statistical manual of mental disorders - fourth edition - text revision (DSM-IV-TR).

Participant has ever participated in or plans to participate in a substance or alcohol rehabilitation program to treat their substance or alcohol dependence.

Unwillingness or inability to abstain from recreational drug use for the duration of the trial.

Failure to comply with trial requirements (e.g., consumption of alcohol, beverages or food containing quinine, grapefruit juice, Seville oranges) judged by the investigator to affect participant safety or interfere with the integrity of the trial.